Double Replacement Reaction Definition. A double replacement reaction is a chemical reaction where two reactant ionic compounds exchange ions to form two new product compounds with the same ions. Double replacement reactions take the form: A+B- + C+D- â A+D- + C+B-. In this type of reaction, the positive-charged cations and the negative-charged anions of the reactants both trade places (double displacement), to form two new products. Also Known As: Other names for a double displacement reaction are a metathesis reaction or a double replacement reaction.
Cincinnati-based Kroger operates dozens of stores throughout Oregon, including 53 under the Fred Meyer brand that started in Portland. There are now 132 Fred Meyer stores now operate in four states -- Oregon, Washington, Alaska and Idaho. Kroger also has a half-dozen QFC stores in the Portland metro area. It's unclear, though, how many of the new jobs will be based in the Pacific Northwest. The entire Fred Meyer division in the four states will have 1,700 openings, spokesperson Amanda Ip said.
At the low end of the market, Food Lion has launched a deep discount, limited assortment grocery store format called Bottom Dollar Food. About 45 Bottom Dollar stores, offering 6,500 to 8,000 branded and private-label products, are currently in operation.